Dynamite Friction 631-40045L Disc Brake Rotor - Front Left

Reliable Performance for Chevrolet, Dodge, and GMC Trucks

The Dynamite Friction DFC Brake Rotor - Drilled and Slotted - Silver (part number 631-40045L) is engineered to provide consistent braking performance for heavy-duty vehicles. Designed specifically for Chevrolet K1500 Suburban, K2500, K2500 Suburban, K3500, GMC Suburban 1500, Suburban 2500, and Dodge Ram 2500 models, this rotor meets the demands of rugged driving conditions.

• Disc brake rotor with drilled and slotted surface for improved heat dissipation
• Vented rotor design to reduce brake fade during heavy use
• Directional brake surface for optimized braking efficiency
• Rust-resistant zinc silver hat finish for extended durability
• Nominal thickness of 32.9 mm with discard thickness at 30.86 mm
• Eight bolt holes with 16.4 mm diameter for secure fitment
• Overall diameter of 317.5 mm and height of 70 mm

About the DFC Brake Rotor - Drilled and Slotted - Silver Line

The DFC Brake Rotor - Drilled and Slotted - Silver line by Dynamite Friction focuses on rotors that combine drilled holes and slots to enhance braking performance by improving heat dissipation and reducing gas buildup. The silver zinc coating on the rotor hat provides corrosion resistance, making these rotors suitable for vehicles exposed to harsh environments. This product line is designed to meet the specifications required by heavy-duty trucks and SUVs, ensuring reliable stopping power and durability.

Technical Specifications and Features

This disc brake rotor features a vented design that allows air to flow through the rotor, helping to maintain lower operating temperatures and reduce brake fade. The drilled and slotted surface improves water and debris evacuation from the braking surface, enhancing wet-weather braking performance. The rotor is directional, meaning it is designed to rotate in a specific direction to maximize efficiency. With an outside diameter of 317.5 mm and a center hole diameter of 137.4 mm, it fits securely on the specified Chevrolet, Dodge, and GMC models. The zinc silver hat finish provides rust resistance, extending the rotor's service life.

Applications and Problem Solving

• Compatible with Chevrolet K1500 Suburban, K2500, K2500 Suburban, K3500
• Compatible with Dodge Ram 2500
• Compatible with GMC Suburban 1500 and Suburban 2500
• Addresses brake fade caused by overheating during heavy towing or hauling
• Reduces brake surface corrosion in wet or salty environments
• Improves braking response in wet conditions through slotted and drilled design
• Helps maintain consistent braking performance under heavy load

Installation Notes and Tips

Ensure the rotor is installed with the correct orientation to maintain the directional surface benefits. Verify that the bolt hole pattern (8 holes, 16.4 mm diameter) matches the vehicle hub. Check rotor thickness before installation; replace if below the discard thickness of 30.86 mm. Properly torque all lug nuts to manufacturer specifications to avoid rotor warping.

Quality Assurance

Dynamite Friction manufactures this rotor to meet or exceed OEM specifications for fit, form, and function. The rust-resistant coating and vented design contribute to long-term durability. Warranty information is available through the manufacturer and should be consulted for specific coverage details.